外文原文-高速加工和现代模具制造.pdf

1、-1-Treating and the modern mould make high speedOne,summarizes1 the present situation that the mould makes at present and trendThe mould is important handicraft equipment,occupies decisive position in industriddepartments such as consumer goods,electrical equipment electron,automobile,aircraftfabric

2、ation.The mould is important handicraft equipment,occupies decisive position inindustrid departments such as consumer goods,electrical equipment electron,automobile,aircraft fabrication.Industrial product part rough process 75%,the finish machining 50%andplastic part 90%will be completed from the mo

3、uld.The Chinese mould market demandalready reaches scale of 500 hundred million yuan at present.The automobile mould,theannual growth rate covering piece of mould especially will exceed 20%;Also promptbuilding material mould development,various heterotype material the mould,wall surfaceand floor mou

4、ld become new mould growth point,plastic doors and windows and plasticdrain-pipe increase to exceeding 30 by in the upcoming several years%;The home appliancemould annual growth rate will exceed 10%;The IT industry year increases%speed equallyexceeding 20,the need to the mould accounts for 20 of mou

5、ld marketplace%.2004 annualChinese machine tools implements industry output valuewill continue to increase.Our country mould fabrication market potential is enormous.The basis data counts,in recent years,our country mould year gross output value reaches 3billion U.S.dollar,entrance exceeds 1 billion

6、 U.S.dollar,exceed 100 million U.S.dollaroutlet.Increase by from 25%to increase to 2005 50%of 1995.The expert foretells thatabroad:Asia portion being occupied by in mould fabrication in the whole world,will from25%to increase to 2005 50%of 1995.Chinese mould industry has been expanding by leaps and

7、bounds,has formed eastChina and two big South China bases,and has expanded gradually arriving at other province.In 2002(Shandong,Anhui,Sichuan)in 1996,mould manufacturing industry output valueannual average growth 14%,grows by 25%in 2003.In 2003 our country mould output valueis 45 billion RMB.The gr

8、oss product place occupies the world the 3rd,exports a mouldincreases 33.5%compared to last year 336,800,000 U.S.dollar.But,contents low our-2-country technology moulds already pile up in excess of requirement,very most support ofaccurate,complicated top grade mould imports.Every year the entrance m

9、ould exceeds 1billion U.S.dollar.Exceed 100 million U.S.dollar outlet.Precise mould accuracy requires that 3 mu ms,large-scale moulds require that 8000satisfied kN agree well with model force injection machine request in 2;The minitypemould needs the request satisfying the diameter 1 mm silent stock

10、 tube.At present,adoptquick-cutting to produce a mould already becoming the general trend that the mould makes,afew moulds have produced a manufacturer in abroad,high-speed machine tool large area hassubstituted the electric spark machine tool,quick-cutting has improved the mould efficacygreatly.Mac

11、hine tool enterprise aims at mould manufacturing enterprises,some treatingcentres 60%all above of the machine tool producing a factory sells treating enterprise to amould.The mould fabrication enterprise substituting the electric spark finish machiningmould gradually in abroad has adopt quick-cuttin

12、g already commonly,quick-cutting hasproduced a mould already becoming the general trend that the mould makes gradually,hasimproved the mould efficacy and mass greatly.Adopt quick-cutting to replace electric sparkproducing a mould,can get on the stick obviously,improves mould accuracy,life timegrowin

13、g.2 high speed processes application in making in the mould2.1 quick-cutting merit:1)cutter high rotation rate and the machine tool height enter be given to and highacceleration,improve metal excision rate greatly;2)quick-cutting diminutions cut a force;3)quick-cutting heat major part generate heat

14、from the cuttings entrainment,workpiece being short;4)quick-cutting cut down vibration,improve treating mass;2.2 high speed treating apply to the beneficial result that the mould processes1)fleetness rough process and half finish machining,improve treating efficiency;2)high speed high-accuracy finis

15、h machining replace only entire the heightprocessing,indicating mass,form accuracy rise,50%,cuts down repair a mill by hand than-3-EDM processes a potentiation;3)cuts the surface processing final molding stiffly,improve surface mass,formaccuracy,the treating(not only being that surface harshness is

16、low,and the surface radiance ishigh),being used for complicated surface has more advantage;4)the surface loss that EDM treating produces,improve mould life-span 20%;5)processes an electrode rapidly combining with the CAD/CAM technology,especially,the form is complicated,thin-wall is similar to an electrode.3 adopt quick-cutting to process a mould needing the problem solvingIn in the homeland,since the aspect cause such as fund,technology,the quick-cuttingapplying produce a mould be in the initia